Interview Questions

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TypeScript Interview Questions

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21.

How do you handle nullable types in TypeScript?

intermediate

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22.

What is type assertion and when should you use it?

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23.

What's the difference between `interface` and `type` in TypeScript?

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24.

How do you define function types in interfaces?

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25.

What are index signatures in TypeScript?

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26.

How does inheritance work in TypeScript?

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27.

What are abstract classes in TypeScript?

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28.

How do you implement interfaces in classes?

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29.

What are static methods and properties in TypeScript?

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30.

What are getters and setters in TypeScript?

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31.

What are generics in TypeScript and why are they useful?

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32.

How do you define generic interfaces?

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33.

What are generic constraints in TypeScript?

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34.

How do you create generic classes?

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35.

What is the `keyof` operator in TypeScript?

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36.

What are discriminated unions in TypeScript?

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37.

What is type narrowing in TypeScript?

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38.

What are type guards in TypeScript?

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39.

What is the `never` type in TypeScript?

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40.

What are namespaces in TypeScript?

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Showing 21 to 40 of 99 results

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